This afternoon, I pulled out the
Structural (autopilot) roll and pitch servos and looked them over for
the first time. Eeek! While the workmanship generally look
good, I found this (pic below) point where the control wires are stressed
against sharp bare metal. The grommet was split. There was
no way to relieve the tension since the wires are stretched pretty tight
from the plug housing to the stepper motor. Fortunately, the problem
was only with the pitch servo and today I am planning on installing the
roll servo in the right wing. It does bother me that it would be
shipped in this condition because, this is an obvious future failure point
in a critical flight system.

As you can see, the roll servo looks fine. The wires are both properly
protected by the grommet and not stretched as tight as well. I can
live with this. (no pun intended!)

First, I made up a cable to the DB-9 connector. It includes black
and red 20g wires. My color code indicates that black is always
ground and red is always 12v hot. I don't actually understand why
there is a constant 12v to the servo, but that is what the schematic calls
for.

Here begins the installation of the roll servo in the right wing.
Remember, the wing is upside down on the bench here. So, if you
really want the right perspective, stand on your head and look at the
pictures :-) This long bracket replaces the Van's
symmetrical bracket that normally holds the bottom leg of the aileron
bellcrank in alignment. The new bracket bolts to the main spar through
the same holes as the original bracket. Below that you can see an
additional support bracket that is added to hold the servo from the top.

Here it is! All installed.
OK, I did skip several steps in between, but it is all straight forward.
Just follow the drawing that comes with the TruTrak. The only drilling
you need to do is one hole 2" from the bellcrank pivot point to attach
the actuator push/pull tube.

Here is a shot taken from the rear (still upside down) for a different
perspective.

Rapping up the day, I ran RG-400 cable through the left wing for wingtip
VOR antenna. The cheapest RG-400 I could find came from Sky Craft
Parts in Florida. It was $.85 a foot for anything over 100'.
A bargain compared to many other sources. I ordered 150', even though
I only estimated I'd use about 60'. By the way, this stuff is really
heavy, you want to use as little as you reasonably can.